Grate bar



FIG. 1 is a perspective view of the bottom, front and left sides of the grate bar;

FIG. 2 is an enlarged left side elevation view of the grate bar;

FIG. 3 is a front elevation view of the grate bar;

FIG. 4 is an enlarged right side elevation view of the grate bar;

FIG. 5 is a rear elevation view of the grate bar;

FIG. 6 is a bottom plan view of the grate bar;

FIG. 7 is a top plan view of the grate bar;

FIG. 8 is a top perspective view of the top and right sides of the grate bar; and,

FIG. 9 is an enlarged cross-sectional view of the grate bar taken along reference line 9—9 of the FIG. 5 view.

FIGS. 1, 5, 6, 7 and 8 include broken line features. The features shown in broken lines depict usage and environmental subject matter only and form no part of the claimed design. The grate bar is broken in the middle to indicate that no particular length is claimed.

The claimed “grate bar” may be used in conjunction with a traveling grate stoker. 

The ornamental design for a “grate bar,” as shown and described. 